Method and Apparatus for Detecting Direct Sequence Spread Spectrum Signal Based on Cyclic Frequency Estimation
Disclosed are a direct sequence spread spectrum signal detecting method based on circular frequency estimation and a device therefor. According to an embodiment of the present invention, the direct sequence spread spectrum signal detecting device comprises: a received signal obtaining unit that obta...
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Main Authors | , , , , |
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Format | Patent |
Language | English Korean |
Published |
21.06.2023
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Subjects | |
Online Access | Get full text |
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Summary: | Disclosed are a direct sequence spread spectrum signal detecting method based on circular frequency estimation and a device therefor. According to an embodiment of the present invention, the direct sequence spread spectrum signal detecting device comprises: a received signal obtaining unit that obtains a received signal corresponding to a signal transmitted in a direct spread spectrum manner; a circular frequency estimating unit that selects a candidate circular frequency estimated as a circular frequency from the received signal and calculates a test statistic amount for the selected candidate circular frequency; and a direct sequence spread spectrum signal determination unit that compares the test statistic amount with a preset threshold value to determine whether it is a direct spread spectrum signal.
순환 주파수 추정 기반 직접 시퀀스 확산 스펙트럼 신호 탐지 방법 및 그를 위한 장치를 개시한다. 본 발명의 실시예에 따른 직접 시퀀스 확산 스펙트럼 신호 탐지 장치는, 직접 확산 스펙트럼 방식으로 송신된 신호에 대응하는 수신 신호를 획득하는 수신 신호 획득부; 상기 수신 신호에서 순환 주파수로 추정되는 후보 순환 주파수를 선정하고, 선정된 상기 후보 순환 주파수에 대한 검정 통계량을 산출하는 순환 주파수 추정부; 및 상기 검정 통계량을 기 설정된 임계치와 비교하여 직접 확산 스펙트럼 신호를 여부를 판단하는 직접 시퀀스 확산 스펙트럼 신호 판단부를 포함할 수 있다. |
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Bibliography: | Application Number: KR20220009281 |